2nd Edition MOBILE POWER Product Guide www.maximintegrated.com Mobile Power Product Guide Table of Contents 3 Fuel Gauges, Chargers, Battery Monitoring, and USB Management 11 Multifunction PMICs 14 Single-Function Step-Up/Down DC-DCs and LDOs 19 Selector Guide and Tables 2 www.maximintegrated.com www.maximintegrated.com Mobile Power Product Guide Fuel Gauge Reports Battery State of Charge Accurately and Maximizes Battery Life ModelGauge™ Algorithm Eliminates Current-Sense Resistor and Other External Components to Save Cost and Space • Simple design reduces implementation cost MAX17048 • Low component count saves board space • Calibration-free to simplify manufacturing • Maximize runtime with the industry's lowest supply current (4μA hibernate, 23μA active) ONLY ONE EXTERNAL COMPONENT • Low-battery alert extends battery standby time and reduces software complexities VDD ALRT CELL SDA CTG SCL GND QSTRT SYSTEM µP ModelGauge m3 IC Accurately Reports Battery Capacity from System Side and Maximizes Battery Life The MAX17047 and MAX17050 Improve Coulomb Counting to Provide the Industry’s Best Accuracy • Load, temperature, and age compensation increase accuracy • Continuous learning eliminates sudden SOC corrections SOC 5 75 0 50 -5 25 -10 SUDDEN JUMPS IN SOC 0 10 TIME (hr) 0 20 SOC ERROR 10 100 vs. ERROR (%) ERROR (%) REFERENCE SOC SOC (%) SOC ERROR 10 ModelGauge m3 2% Error (MAX17047/MAX17050) REFERENCE SOC SOC 100 5 75 0 50 -5 25 -10 0 10 TIME (hr) 20 SOC (%) Competition’s 7% Error 0 3 www.maximintegrated.com Mobile Power Product Guide Safety, Security, and Accuracy for 1-Cell Li+ Batteries in a Tiny TDFN The DS2784 delivers a complete fuel-gauging solution in a tiny 15mm2 footprint. It integrates a stand-alone fuel gauge is a singlecell Li+ protector and a SHA-1-based challenge-response authentication system. • Li+ safety monitor with programmable thresholds for overvoltage and overcurrent • Gain and tempco calibration for using low-cost sense resistors • SHA-1 security with 64-bit challenge, 64-bit secret, and 32-bit internal bus • 32-byte parameter EEPROM, 16-byte user EEPROM • Precision voltage, temperature, and current measurements • Tiny, 3mm x 5mm, lead-free, 14-pin TDFN package • Available capacity reported as percent remaining and mAh remaining PK+ 1kΩ 1kΩ DC CC PLS DATA 1kΩ 150Ω 1kΩ VDD VIN DS2784 DQ 150Ω CP PIO SNS VSS 0.1µF 5.1V PK- 4 0.1µF RSENSE Part 64-Bit ROM Interface Memory (Bytes) Fuel Gauge Li+ Protector Package (mm x mm) DS2776 ✓ 1-Wire® 64 EEPROM 2-cell Li+ ✓ 14-TDFN (3 x 5) DS2778 ✓ 2-Wire 64 EEPROM 2-cell Li+ ✓ 14-TDFN (3 x 5) DS2780 ✓ 1-Wire 40 EEPROM 1-cell Li+ — 8-TSSOP, 8-TDFN (3 x 4) DS2781 ✓ 1-Wire 40 EEPROM 1- or 2-cell Li+ — 8-TSSOP, 8-TDFN (3 x 4) DS2782 — 2-Wire 40 EEPROM 1-cell Li+ — 8-TSSOP, 8-TDFN (3 x 4) DS2784 ✓ 1-Wire 40 EEPROM 1-cell Li+ ✓ 14-TDFN (3 x 5) www.maximintegrated.com Mobile Power Product Guide USB Charger Detection Enables Optimal Universal Charging Imagine a world where only one charger fits all your devices. With the widespread deployment of USB ports in hotel rooms, planes, and automobiles, the increasing adoption of USB charging is making that vision a reality. The MAX14656* allows your mobile device to capitalize on USB’s ubiquity, while optimizing to the charge capability of each type of USB port and even proprietary USB adapters. And it's all done in a manner compliant to the latest USB charging recommendations**. UART/AUDIO MAX14656 5V DPDT USB HS OVP 15kV ESD VBUS D+ D- INT APPLICATIONS PROCESSOR ID CONTROL I2C UNIVERSAL CHARGER DETECTION USB ID DETECTION 36V OVP DCM/IUSB MAX8903_/MAX8934_ EXTERNAL CHARGER BATTERY *Future product—contact factory for availability. **USB Battery Charging Specification Revision 1.2 5 www.maximintegrated.com Mobile Power Product Guide Protect Your Portable Device from Damage When Simultaneously Using Multiple Power Supplies The MAX14606/MAX14607 are high-voltage, high-current overvoltage protectors (OVPs) that feature reverse bias blocking capability so that two power sources can be safely interfaced simultaneously without damage to either one. In this design, two integrated back-to-back FETs prevent the voltage applied at the intended output from feeding back into the input. Without this reverse bias blocking, users are forced to use multiple discrete, space-consuming external components to protect the end equipment. OTG EN FROM SYSTEM USB MICRO-AB VBUS IN CHARGER IN OUT 1µF 1µF MAX14607 VIO ACOK EN CHARGER OVLO WIRELESS CHARGING OR DOCKING STATION IN VIO OUT 1µF APPLICATIONS PROCESSOR MAX14607 EN ACOK OVLO SAFELY CONNECT MULTIPLE POWER SOURCES Q1 SUITABLE FOR HIGH-POWER SYSTEMS Q2 3A IN GATE DRIVER Two integrated back-to-back FETS provide reverse bias blocking 6 OUT MAX14607 Capable of up to 3A continuous current through a low, 54mΩ (typ) internal on-resistance www.maximintegrated.com Mobile Power Product Guide Charge Safer with the Industry’s First Dual-Input Smart Charger with Advanced Temperature Monitoring The MAX8934_ automatically adjusts charge current and termination voltage to meet JEITA recommendations for safe charging*. It integrates all circuitry for charging and switching the load between the battery and the external power. LDO Withstands up to 16V input voltage 3.3V ALWAYS-ON LINEAR REGULATOR AC ADAPTER UP TO 2A DC SYS Q1 CHARGE CURRENT LOAD CURRENT SYSTEM LOAD System is supported by adapter even if battery is dead Q3 Withstands up to 9V input voltage USB UP TO 1.5A USB CHARGE AND SYS LOAD SWITCH Q2 BATT BATTERY GND TEMP MONITOR MAX8934_ Adjusts charge current and voltage to a safe level, no software needed 4 m m -TQFN 28 m x 4m AUTOMATICALLY SETS MAXIMUM CHARGE RATE T1 ±25mV 4.2 4.1 4.075 ±25mV 4.0 0 10 25 T1 1 T2 FAST-CHARGE CURRENT (C) CHARGE TERMINATION VOLTAGE (V) AUTOMATICALLY SETS CHARGE TERMINATION VOLTAGE 45 60 85 T2 0.5 0 10 TEMPERATURE (°C) SAFETY REGION 1 SAFETY REGION 1 SAFETY REGION 2 SAFETY REGION 2 25 45 TEMPERATURE (°C) 60 85 *Follows charging recommendations per JEITA (Japan Electronics and Information Technology Industries Association) Standard, “A Guide to the Safe Use of Secondary Lithium Ion Batteries on Notebook–Type Personal Computers,” April 20, 2007. 7 www.maximintegrated.com Mobile Power Product Guide Battery Charger Simplifies USB Charging and Maximizes User Convenience USB Charger* Automatically Enumerates with Host or Detects Adapter Type The MAX77301** is a linear battery charger for Bluetooth® headsets, cell phones, and other portable devices. Built-in USB enumeration automatically negotiates with the USB host to optimize charging current without processor intervention, thus eliminating the need for a separate CPU or system software. The MAX77301 includes Smart Power Selector™ circuitry to allow a portable device to operate with a discharged battery or no battery. Charge Enumerate Saves Space and Cost Easy Implementation • Up to 0.9A charging with integrated pass element • No extra software required for charger detection or USB enumeration • Internal power-path switch eliminates an external FET • Needs no external CPU for charger detection or USB enumeration • Packaged in a 2.38mm x 2.38mm WLP • Charger is stand alone • Compliant with USB Battery Charging Specification, Revision 1.1 • I2C interface • Supports JEITA safe charging *USB charging protected by U.S. Patent #6,507,172. **Future product—contact factory for availability. 8 www.maximintegrated.com Mobile Power Product Guide 2A, DC-DC, Li+ Battery Charger Reduces Charge Time and Heat by 50% The energy-efficient MAX8903A Li+ battery charger utilizes its Smart Power Selector circuitry to operate with no battery or a deeply discharged battery when connected to external power. It optimizes limited USB or adapter power and charges the battery with input power not used by the system. The MAX8903A eliminates the need for external FETs, diodes, and sense resistors to simplify design and maximize board space. AC ADAPTER OR USB LX CS SYS DC CHARGE CURRENT CHARGE AND SYS LOAD SWITCH PWM STEP-DOWN USB LOAD CURRENT + SYSTEM LOAD 50% faster BAT USB BATTERY Up to 50% faster charge rate - MAX8903A GND MAX8903A SWITCHING CHARGER LINEAR CHARGER 30% cooler Conditions: VIN: 5V VOUT: 3.4V ICHARGE: 800mA The MAX8903A stays cool while competing linear chargers heat up. Feature Input type (USB/DC) Input range (V, abs. max) Competition MAX8903A MAX8903A Advantages Single Dual/single Greater design flexibility 4.35 to 5.5, 7 4.15 to 16, 18 No external overvoltage-protection IC needed UVLO/OVLO ✓/— ✓/✓ Better design robustness Switching frequency (MHz) 2.25 4 Smaller external components BAT to SYS (R DSON) (mΩ) 180 50 Longer battery life and less heat Output current (A, max) 1.2 2 Faster charge time 9 www.maximintegrated.com Mobile Power Product Guide Charge Fast, Cool, and Safely The MAX8971 is the industry's smallest 1.55A charger that charges quickly with minimal heat generation. And it charges from a variety of adapters. Maximizes Safety Minimizes Heat Saves Space • JEITA-compliant temperature monitoring • Temperature regulation • 3.25MHz switching requires only 2.0mm x 1.6mm inductor • Withstands transient inputs up to 22V • Charge safety timer • No external FETs or sense resistors • No external FETs or sense resistors • Switch mode maximizes efficiency • Tiny 2.44mm x 2.67mm package • Low path resistance minimizes waste • Thermal shutdown • Adaptive input current limiting -0.3V TO +22V TOLERANT 4.0V TO 10V OPERATIONAL DC C7 4.7µF 6.3V 0402 DC1, DC2 C1 2.2µF 25V 0603 BYP BST C6 0.1µF 0402 BYP SFO C3 1µF 6.3V 0402 C4 4.7µF 6.3V 0402 L1, 1µH 2520 LX1, LX2 PVL AVL C2 1µF 25V 0603 PG1, PG2 GND MAX8971 CS VICHG R1, 47mΩ 0402 I2CIN BAT+ BAT µP C5 2.2µF 6.3V 0603 IRQB BATSYSTEM LOAD THM RTB 0402 SDA SCL R2, 100kΩ AVL The Basics of USB Battery Charging: A Survival Guide Review the battery-charging survival guide in Maxim's Application Note 4803 at www.maximintegrated.com/AN4803 for more information. 10 Competitor 60°C MAX8971 42°C www.maximintegrated.com Mobile Power Product Guide TINI Power SoCs Break Through the Integration Barrier in Portable Platforms Half the board area in smartphones and tablets is consumed by power, analog, mixed-signal, audio, and passive components. Maxim’s power SoCs integrate these functions in a single chip to free up real estate for new differentiating features and higher-capacity batteries. • Integrate power and system functions into a single chip to save board space, reduce the bill of materials, and improve performance • Built-in microcontroller and memory offload the applications processor and allow one design to be ported across multiple platforms • Highly efficient power-management functions extend battery life and reduce heat TINI® Power SoC USB/AC ADAPTER Li+ MAIN BATTERY BATTERY MANAGEMENT CHARGER WITH OVP AND Smart Power Selector CIRCUITRY FUEL GAUGE BATTERY BACKUP BATTERY DISPLAY PROCESSOR AND SYSTEM POWER HIGH-EFFICIENCY DC-DCs HIGH-SPEED CORE DC-DCs WITH DVS APPLICATIONS/ BASEBAND PROCESSORS LOW-NOISE, HIGH-PSRR LDOs MOBILE TV BLUETOOTH/ 802.11 BACKLIGHT POWER TOUCH SCREEN AND DISPLAY TACTILE FEEDBACK TOUCH SCREEN DIGITAL/CONTROL/GPIO SERIAL INTERFACE: I2C/SPI/JTAG GPIO KEYBOARD USB TOUCH-SCREEN CONTROL INDICATORS RTC LED AND MOTOR DRIVERS MICROCONTROLLER MEMORY CONNECTORS DDR POWER CURRENT-LIMIT AND OVP PROTECTION VIBRATOR LPDDR RAM USB HOST HDMI® DETECTOR AND SWITCH AUDIO SPEAKER HEADPHONE, MIC, SPEAKER CODEC CAMERAS HEADPHONE, MIC, SPEAKER AMPS LOW-NOISE POL REGULATORS CAMERA FLASH HEADPHONES SYSTEM TEMP SENSOR AMBIENT-LIGHT SENSOR HIGH-RESOLUTION CAMERA VGA CAMERA SENSORS AMPS AND ADCs RADIO MISC. ADC CHANNELS ENVELOPE-TRACKING RFPA POWER 3G/4G RADIO 11 www.maximintegrated.com Mobile Power Product Guide Highly Integrated Power SoC Saves Cost and PCB Space in Smartphones Complete Power Management for Applications and Baseband Processors Additional Functionality • Backup-battery charger • Five highly efficient step-down regulators • SIM-level translator • Twenty LDOs • USB 3-wire transceiver Dual-Input Li+ Battery Charger • RTC with alarms and 32kHz buffers • USB or AC adapter input • TCXO buffers • Battery/power switchover • I2C interface for programming • 28V input protection MAX9880A Audio Subsystem BASEBAND µP CODEC (2.7mm x 3.5mm) • Class D mono amplifier TV OUTPUT MOBILE TV • DirectDrive® headset amplifier Bluetooth MAX8906 • Programmable input mixer ADC/Touch-Screen Controller • 12-bit resolution • Monitors charge current, battery, and die temperature Customer Success Story Powering the Applications and Baseband Processors SYSTEM POWER MANAGEMENT, AUDIO SUBSYSTEM, AND TOUCH-SCREEN INTERFACE (5.85mm x 5.7mm) LCD APPLICATIONS μP KEYBOARD CAMERA MODULE HI-SPEED USB NOR/ NAND SD™ CARD MAX8906 Smartphone Solution 1005 1005 1005 1005 1608 1608 1608 1608 1005 1005 1005 1005 1608 1608 1005 1005 1005 1005 1608 1608 1005 1005 1608 1608 1005 1005 1608 1608 1608 1608 1608 1608 0603 IC count: 2 Component count: 76 38 IC size (mm2): Component area (mm2): 117 Estimated BOM: $1.29 0603 0603 0603 0603 0603 0603 0603 4.2mm DIAMETER LITHIUM MANGANESE 3215 0603 1608 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 0603 0603 0603 2520 MAX8906 2016 5.85mm x 5.7mm 2012 1 1005 005 11005 005 1 1005 005 11005 005 11005 005 1005 1005 1005 1005 1005 1005 2012 2012 MAX9880A 2.7mm x 3.5mm 1005 1608 1608 1608 1608 1608 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1608 1608 1608 1608 1608 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1608 1608 1608 1608 1608 PM6650 7mm x 7mm 3216 MAX8660 5mm x 5mm 3216 3216 1 0 0 5 3216 1 0 0 5 1 0 0 5 2828 1608 1608 1608 1608 1608 1608 1608 0603 0603 0603 0603 2828 1005 1005 LTC4078 3mm x 3mm 2828 1005 MAX4736 2mm x 2mm 1 0 0 5 1005 1005 1005 1608 1005 1005 1005 1608 1005 1005 1005 WM9713 7mm x 7mm 1005 MAX1237 3mm x 5mm 1608 1608 1005 1005 1608 1608 1005 1005 2520 1005 1005 APPLICATIONS PROCESSOR 12 1005 MAX9705B 2mm x 1.5mm 1005 1005 1005 MAX9725B 2mm x 1.5mm 1005 2012 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1005 1 0 6 8 R2015 2mm x 2mm 1608 1 0 0 5 4.2mm DIAMETER LITHIUM 0603 1608 0603 1 0 0 5 0603 0603 1608 1608 BASEBAND PROCESSOR Conventional Smartphone Solution 2520 IC count: 9 Component count: 121 IC size (mm2): 161 Component area (mm2) 321 Estimated BOM: $2.11 www.maximintegrated.com Mobile Power Product Guide Tiny Dual 2A Step-Down Converter with 6 LDOs The MAX8967* delivers versatile high-current, high-efficiency power sources in a very small solution footprint. INPUT 2.6V TO 5.5V IN1 IN2 AV Minimizes Current Consumption • Automatic skip mode at light loads • Low 44μA no-load quiescent current 1.65V TO 5.5V SCL SDA I2C Reduces Board Area with Smaller Components • 4.4MHz step-down switching allows for 1μH inductors • COUT = 1μF for 150mA and 300mA LDOs • Remote output capacitor capable 1µH OUT1 0.6V TO 3.3875V/ 2A 1µH OUT2 0.6V TO 3.3875V/ 2A LX1 PGND1 INA OUT2 INB AGND LX2 MAX8967 PGND2 VIO 1.7V TO 5.5V • Over 90% efficiency with internal synchronous rectifier OUT1 LDO1 0.8V TO 3.95V, 150mA LDO2 0.8V TO 3.95V, 300mA EN1 EN2 VID1 VID2 LDO3 0.8V TO 3.95V, 150mA LDO4 0.8V TO 3.95V, 150mA LDO5 0.8V TO 3.95V, 300mA IRQB LDO6 0.8V TO 3.95V, 150mA Programmable Voltage Options Allow Compatibility • Step down converters programmable output voltage (0.6V to 3.3875V) through I2C bus • LDO programmable output voltage (0.8V to 3.95V in 50mV steps) Two Step-Down DC-DCs and Two LDOs Fit in a Tiny 3mm x 3mm TQFN INPUT 2.8V TO 5.5V • Ideal for powering small handheld devices • Saves space with two DC-DC step-downs, and two LDOs in a 3mm x 3mm package LX1 OUT1 OUT1 DOWN TO 0.6V, UP TO 600mA Li+ MAX8667 • Low noise, 45μVRMS output noise • Individual enable pins add flexibility IN12 EN1 HIGHLY FLEXIBLE EN2 EN3 EN4 LX2 OUT2 OUT2 DOWN TO 0.6V, UP TO 1.2A IN34 LDO OUT3 REF LDO OUT4 DOWN TO 1.2V, UP TO 300mA 80% less power loss and 75% smaller than discrete solution *Future product—contact factory for availability. 13 www.maximintegrated.com Mobile Power Product Guide Tiny PMIC Frees PCB for More Features or Larger Battery Cell The MAX8819_ is a complete power solution for portable applications. It integrates a battery charger, step-down converters, and WLED power. Maxim's Smart Power Selector circuitry enables instant on at adapter plug-in even with a fully discharged battery and intelligently rations power to both the system and the battery. USB/AC-DC ADAPTER Travel light: integrated charger eliminates the need for an additional charger IC SYS DC Automatically powers from an external source or battery: Smart Power Selector enables instant-on in which the system can be powered up immediately from an adapter, even with a missing or dead battery BAT Li+/Li-Poly BATTERY ENABLE SYSTEM EN123 ENABLE CHARGER CEN ENABLE BACKLIGHT EN4 SYS OUT1 LX4 OVP4 Cuts cost and size: integrated high-efficiency WLED step-up converter FB4 GND ~88mm2 Solution Area, 1mm Solution Height 11.6mm 0603 0603 1608 2012 1608 4mm x 4mm 14 DIODE CAP RES INDUCTOR 0603 (Form-factor-optimized placement) IC 7.6mm 1608 1608 1608 2220 1608 MAX8819_ 2016 1608 1005 0603 LEGEND 0603 1608 2016 1608 2016 1608 I/O MAX8819_ OUT2 MEMORY OUT3 CORE Maximizes battery life: three 95% efficient, 2MHz step-down converters www.maximintegrated.com Mobile Power Product Guide DC-DC Step-Down Converter Allows Application Processors to Run Faster Industry’s Smallest 2.5A Step-Down Converter with I²C Control The MAX8952 is a tiny, DC-DC step-down converter with high output current that enables application processors to run at their maximum clock speed to meet the demands of today’s multimedia applications in handheld devices. Designed to minimize your solution area, this 2mm x 2mm converter also ensures tight output-voltage accuracy for reliable, power-efficient operation. Advantages SYNC • Dynamic voltage scaling • 3.2MHz switching for small components OSC • 40.5mm2 solution size CLOCK GEN IN2 VDD • Better than 0.5% initial accuracy I2C INTERFACE SCL SDA LX PWM LOGIC IN1 PGND EN IN1 VDAC VOLTAGE CONTROL, VREF, BIAS, ETC. VID0 VID1 AGND SNS+ SNS- MAX8952 4MHz SWITCHING INPUT 2.7V TO 4.9V IN OUTPUT 1µH OR 2.2µH 0.6V TO 2.5V LX Tiny 1mm x 1.5mm, 500mA Step-Down DC-DC Allows Flexible Board Layout Li+ 2.2µF MAX8640Y OUT MAX8640Z GND ON 2.2µF OR 4.7µF SHDN OFF • Consumes only 24μA HIGH EFFICIENCY (MAX8640Y) • Up to 4MHz switching 100 • Low 24μA quiescent current 90 INPUT 2.7V TO 4.9V 4MHz SWITCHING IN Li+ OUTPUT 1µH OR 2.2µH 0.6V TO 2.5V 70 60 50 40 30 20 LX 3.6VIN 1.8VOUT 10 2.2µF GND ON APPLICATION PROCESSOR EFFICIENCY (%) 80 • Evaluation (EV) kit available to speed designs MAX8640Y OUT MAX8640Z SHDN 2.2µF OR 4.7µF BASEBAND CHIPSET 0 0.1 1 10 100 1000 LOAD (mA) OFF 15 HIGH EFFICIENCY (MAX8640Y) 100 APPLICAT PROCESS BASEBA CHIPSE www.maximintegrated.com Mobile Power Product Guide High Efficiency Over a Wide Load Extends Battery Life 1.2A Step-Down DC-DC Achieves Up to 95% Efficiency, 16µA IQ The MAX1556/MAX1557 step-down DC-DC converters save battery life by having the lowest supply current under all operating conditions, including light load, heavy load, and dropout. These devices provide the fastest load and line-regulation responses of any parts in their class. Use them to get longer standby and operating times in your PDA, smartphone, digital camera, and other handheld devices. • Single part has one adjustable and three fixed outputs • Analog soft-start with zero overshoot • Pin-programmable 3.3V, 2.5V, 1.8V, and adjustable outputs at 1.2A (MAX1556) • Tiny 10-pin, 3mm x 3mm TDFN package • Pin-programmable 1.5V, 1.3V, 1.0V, and adjustable outputs at 600mA (MAX1557) INDUSTRY’S LOWEST SUPPLY CURRENTS AND FASTEST RESPONSE TIMES 18µA 100% ±3% 200mVP-P 500mA 388µA 40µs 16µA 80% ±2% COMPETITION 60% MAXIM INTEGRATED 40% 50mVP-P 100mA 20% 4µs 27µA 0% QUIESCENT CURRENT OUTPUT VOLTAGE TOLERANCE LOAD TRANSIENT SOFT-START INRUSH CURRENT IQ IN DROPOUT LOAD-STEP RECOVERY 95% EFFICIENCY AT 1mA 100 EFFICIENCY (%) INPUT 2.6V TO 5.5V R1 100Ω 90 LX MAX1556 IN C4 0.47µF VIN = 3.6V, 5.0V 80 VOLTAGE SELECT OFF 70 0.1 1 10 100 OUTPUT CURRENT (mA) 1000 C2 22µF OUT D2 SS SHDN OUTPUT 0.75V TO VIN 1.2A PGND D1 ON VOUT = 3.3V 16 INP C1 10µF L1 3.3µH GND C3 1000pF www.maximintegrated.com Mobile Power Product Guide Industry's Highest PSRR and Lowest Output Noise Enable Noise-Sensitive Applications • 92dB PSRR at 5kHz INPUT 1.7V TO 5.5V • 16μVRMS output noise from 10Hz to 100kHz • 500mA output current • ±1.5% output accuracy over load, line, and temperature • 100mV dropout OUT EN BYP 10µF 0.01µF ON MAX8902A SELA VOUT SELECTION SELB • Operates over the -40°C to +125°C automotive temperature range GND EP LDO OUTPUT-NOISE SPECTRAL DENSITY vs. FREQUENCY (MAX8902A) 10µF OUTS OFF • 80μA operating supply current, < 1μA shutdown supply current 10k IN OUTPUT DOWN TO 0.6V WITH ONLY 100mV OF DROPOUT PSRR vs. FREQUENCY (MAX8902A) 0 1k -30 PSRR (dB) NOISE DENSITY (nV/√Hz) -10 -20 100 -40 -50 -60 -70 -80 10 -90 -100 10 100 1k 10k FREQUENCY (Hz) 100k 1M 10 100 1k 10k FREQUENCY (Hz) 100k Ultra-Low Noise LDO Saves Space Without Compromising Performance • 78dB PSRR at 1kHz • Low 40µA ground current • 120mV dropout at 120mA 2.6mm 1000 1.5mm 0402 1µF 0402 1µF 100 DF 6-µ N 1m • Adjustable or fixed output voltage SMALLEST SOLUTION: 3.9mm2 (MAX8840) ULTRA-LOW NOISE PEFORMANCE (MAX8840) m x .5 m 1 10 0.01 0201 10nF 0.1 1 10 100 1000 m • Tiny 1mm x 1.5mm x 0.8mm, 6-pin µDFN package 10,000 OUTPUT NOISE DENSITY (nV/√Hz) Advanced Noise Reduction Results in Only 11µVRMS of Output Noise: MAX8840 INDUSTRY’S SMALLEST 11µV LDO FREQUENCY (kHz) 17 www.maximintegrated.com Mobile Power Product Guide Tiny 1A Step-Up Converter with Track Mode L1 1µH INPUT 2.5V TO 5.5V LX_ IN CIN 4.7µF OUT_ OUTPUT 3.3V TO 5V, 1A COUT 22µF MAX8969 EN TREN GND_ Safe and Efficient Step-Up Mode Track Modes • Up to 1A output current • Automatic or manual • Up to 96% efficiency • 130mΩ on-resistance • Soft-start controls inrush current • 1A current limited • True Shutdown circuitry • Fast transition into boost • Low 1μA shutdown current Applications Compact Layout • Add-on for OTG boost • 3mm x 3.5mm solution size • Low cutoff voltage battery assist • 1.25mm x 1.25mm WLP package 1A Step-Up Converter Saves Space and Power Delivers Industry's Best-in-Class Efficiency Saves Space High Performance and Safety • 2MHz PWM switching frequency for small external components • Up to 97% efficiency and low 30μA IQ • True Shutdown™ circuitry eliminates need for external load switch • Compact, 3mm x 3mm, 10-pin TDFN package • Overvoltage and short-circuit protection, as well as thermal shutdown • Controlled current in soft-start • Low-noise, fixed-frequency operation (FPWM mode) EFFICIENCY vs. LOAD CURRENT, VOUT = 5V 100 INPUT VOLTAGE 1.2V TO 5.5V 90 EFFICIENCY (%) 80 70 60 50 40 SKIP VIN = 3.6V, 3V, 2.4V, 1.8V, 1.5V SKIP VIN = 4.2V 30 20 10 FPWM VIN = 4.2V, 3.6V, 3V, 2.4V, 1.8V, 1.5V 10 100 OUTPUT CURRENT (mA) 18 97% efficiency ON ON OFF LX MAX8815A OUTS FPWM FB SKIPB Forced PWM or skip mode 1 BATT POUT SKIP 0 0.1 True Shutdown circuitry eliminates load switch 1000 GND OUTPUT VOLTAGE 3.3V TO 5V www.maximintegrated.com Mobile Power Product Guide Chargers Part ICHG (A, max) Protected VIN (V, max) EV Kit Inputs Features Package MAX8606 1 14 Yes 1 Smart Power Selector circuitry, safety timer, thermal regulation 14-TDFN MAX8671X 1 14 Yes 2 Smart Power Selector circuitry, safety timer, thermal regulation, part of a PMIC 40-QFN MAX8677A 1.5 16 Yes 2 Smart Power Selector circuitry, safety timer, thermal regulation 24-TQFN MAX8804_ 0.7 28 No 2 28V withstand, small size 8-TDFN MAX8808_ 1 15 Yes 1 1A charging, tiny package 8-TDFN MAX8814 0.6 28 Yes 1 28V withstand, smart autoboot assistant 8-TDFN MAX8819_ 1 5.5 Yes 1 Smart Power Selector circuitry, safety timer, thermal regulation, part of a PMIC 28-TQFN MAX8895_ 1.85 14 Yes 1 Smart Power Selector circuitry, auto-enumeration and charger type detect 25-WLP MAX8900_ 1.2 22 Yes 1 Safe JEITA charging 30-WLP MAX8971 1.55 22 Yes 1 Smallest 1.55A SMPS charger with JEITA 20-WLP MAX8903_ 2 20 Yes 2 Smart Power Selector circuitry, safety timer, switch mode for cool and fast charging 28-QFN MAX8922L 1 30 No 1 30V withstand, GSM test mode 10-TDFN MAX8934_ 1.5 14 Yes 2 Smart Power Selector circuitry, safety timer, safe JEITA charging 32-QFN 1 Smart Power Selector, autoenumeration and charger detect, JEITA charge control, I2C programmable 25-WLP MAX77301* 0.9 14 Yes *Future product—contact factory for availability. 19 www.maximintegrated.com Mobile Power Product Guide Step-Up/Down Converter Part Description VIN (V, min) High-efficiency, seamless transition, MAX8625A step-up/down DC-DC converter 2.5 VIN (V, max) 5.5 VOUT VOUT (V, min) (V, max) 1.25 Output Oper. IOUT Adjust Freq. (A, max) Method (kHz) Preset or resistor 4 0.8A Features Current limiting, fixedfrequency PWM, internal 1000 power FETs, synchronous rectifier Package 14-TDFN-EP Step-Up Converters VIN (V, min) Oper. Freq. (kHz) Features Package 2 480 Current limiting, external sync., fixed-frequency PWM, internal power FETs 16-QSOP, 24-TQFN 1 500 Current limiting, external power FETs, external sync., fixed-frequency PWM 10-µMAX® 1 400 Current limiting, external sync., fixed-frequency PWM, internal power FETs, low-battery/POK output, synchronous rectifier 6-QSOP 0.15 1 — Current limiting, internal power FETs, synchronous rectifier 5-TSOT 5.5 1.5 1 1000 Current limiting; fixedfrequency PWM, internal power FETs, synchronous rectifier 16-QSOP/ TSSOP-EP 1.25 5 0.8 1 1000 Fixed-frequency PWM, internal power FETs, synchronous rectifier 16-QSOP/ TSSOP-EP 5.5 1.23 5.5 0.25 1 — Current limiting, internal power FETs, reset output, synchronous rectifier 6-SOT/ TDFN-EP 5.5 2.7 28 0.01 1 — Current limiting, internal power FETs, True Shutdown circuitry 6-µDFN/ SOT 1000 Current limiting, fixedfrequency PWM, internal power FETs, low-battery/POK output, True Shutdown circuitry 14-TDFN-EP 2000 Current limiting, fixedfrequency PWM, internal power FETs, sync. rectifier, True Shutdown circuitry 10-TDFN-EP 3000 Current limit, fixed frequency/PWM, internal power FETs, synchronous rectifier, True Shutdown circuitry, track mode 9-WLP VOUT IOUT VIN VOUT DC-DC (V, max) (V, min) (V, max) (A, max) Outputs Part Description MAX685 Dual-output (positive and negative), DC-DC converter for CCD and LCD 2.7 5.5 2.7 24 — MAX668 28V, constantfrequency, currentmode PWM controller 3 28 3 100 6 MAX1705 1-to-3-cell, 1A, lownoise, step-up DC-DC converter with linear regulator 0.7 5.5 2.5 5.5 0.8 MAX1722 1.5µA IQ, step-up DC-DC converter in thin 5-pin SOT23 0.8 5.5 2 5.5 MAX1763 1.5A, low-noise, 1MHz, step-up DC-DC converter 0.7 5.5 2.5 MAX1765 800mA, low-noise, stepup DC-DC converter with 500mA linear regulator 1 5.5 200mA step-up MAX8569 converter in 6-pin SOT23 and TDFN 1.5 High-efficiency LCD MAX8570 boost with True Shutdown circuitry 2.7 Dual-output (positive and negative) DC-DC MAX8614_ converters for CCD and AMOLED 1A, 97% efficiency, 30µA quiescent current, MAX8815A step-up converter with True Shutdown circuitry MAX8969 20 1A simple step-up converter with True Shutdown circuitry and track mode 2.7 1.2 2.5 5.5 5.5 5.5 -15 1.265 3 7.5 5.5 5 0.125 1 1 2 1 1 www.maximintegrated.com Mobile Power Product Guide Step-Down Converters Part MAX1556 Description 16μA IQ, 1.2A PWM step-down DC-DC converter 500mA, 4MHz synchronousMAX8640Z rectified step-down DC-DC converter in SC70 MAX8649 1.8A step-down regulator with differential remote sense in 2mm x 2mm WLP 1.2A PWM stepdown converter in MAX8836Z 2mm x 2mm WLP/ UCSP for PA Power VIN (V, min) 2.6 IOUT VOUT VIN VOUT DC-DC (V, max) (V, min) (V, max) (A, max) Outputs 5.5 2.7 5.5 2.5 5.5 2.7 5.5 0.75 1.1 0.75 3.1 5.5 1.2 1.8 0.5 1.38 1.8 3.4 1.2 Oper. Freq. (kHz) Features Package 1 Adjustable frequency, current limit, fixed frequency/ 1000 PWM, internal power FETs, synchronous rectifier 10-TDFN-EP 1 Adjustable frequency, current limit, fixed frequency/ 4000 PWM, internal power FETs, synchronous rectifier 6-μDFN, 6-SC70 1 Current limit, external sync, fixed frequency/ 3250 PWM, internal power FETs, synchronous rectifier 16-WLP 1 Current limit, fixed frequency/PWM, internal power FETs, synchronous rectifier 16-UCSP ™ , 16-WLP 500 MAX8896 Dual PWM stepdown converter in a 2mm x 2mm package for WCDMA PA and RF power 2.7 5.5 0.5 5 0.7 2 Current limit, fixed frequency/PWM, internal 2000 Pwr. FETs ,synchronous rectifier MAX8952 2.5A step-down regulator with differential remote sense in 2mm x 2mm WLP 2.5 5.5 0.77 1.4 2.5 1 3250 Current limit, external sync, fixed frequency/PWM, internal power FETs, output OVP, synchronous rectifier 16-UCSP 16-WLP Charge Pumps Part Description VIN VIN (V, min) (V, max) VOUT (V) IOUT ICC (A, max) (mA, max) Oper. Freq. (kHz) Topology Package 20mA charge-pump voltage converter 1.5 10 +2VIN , -VIN 0.02 0.175 10 Doubler, inverter, unregulated 8-μMAX/CDIP(N)/ PDIP(N)/SOIC(N)/ TO99 MAX881R Low-noise bias supply in μMAX with POK for GaAsFET PA 2.5 5.5 -VIN - 0.6 0.01 0.95 100 Inverter, regulated 10-μMAX MAX1759 100mA buck/boost regulating charge pump in μMAX 1.6 5.5 2.5 to 5.5 adj. or 0.1 0.18 1500 Regulated 10-μMAX ICL7660 3.3 fixed 21 www.maximintegrated.com Mobile Power Product Guide Converters for WLED Power VIN (V, max) Oper. Freq. (kHz) 2.7 5.5 — Internal power switch(es), openLED protection, shutdown, soft-start 8-TDFN-EP 25 2.7 5.5 1000 Internal power switch(es), LED temperature derating, open LED protection, shutdown, soft-start 24-TQFN Analog, PWM 20 2.6 5.5 1000 Internal power switch(es), open-LED protection, shutdown, soft-start 12-TQFN 50 Analog 350 2.7 5.5 — Open-LED protection, shutdown, soft-start 10-μMAX Inductor based 9 Analog, PWM 25 2.6 6 1000 Internal power switch(es), LED temperature derating, open-LED protection, shutdown, soft-start 8-TDFN-EP MAX8630_ Charge pump 5 PWM, serial pulse 25 2.7 5.5 1000 Internal power switch(es), LED temperature derating, open-LED protection, shutdown, soft-start 14-TDFN-EP MAX8647 Charge pump 6 I2C serial 24 2.7 5.5 1000 Internal power switch(es), LED temperature derating, open-LED protection, shutdown, soft-start 16-TQFN MAX8678 Charge pump 4 Serial pulse 24 2.7 5.5 1000 Internal power switch(es), openLED protection, shutdown, soft-start 16-TQFN MAX8821 Charge Pump 6 Digital, I2C serial 25 2.7 5.5 1000 Internal power switch(es), LED temperature derating, open LED protection, shutdown 28-TQFN MAX8822 Charge pump 4 Digital 24 2.7 5.5 1000 Internal power switch(es), openLED protection, shutdown, soft-start 16-TQFN MAX8830 Inductor based 5 I2C serial 200 2.7 5.5 1000 Camera flash, internal power switch(es), open LED protection, shutdown, soft-start 16-WLP MAX8831 Inductor based 45 Digital, serial 25 2.7 5.5 2000 Internal power switch(es), openLED protection, shutdown, softstart 16-WLP MAX8901_ Inductor based 6 PWM, serial pulse 25 2.6 5.5 750 Internal power switch(es), openLED protection, shutdown, soft-start 8-TDFN-EP MAX8930 Charge pump, linear current regulator 12 I2C serial 25 2.7 5.5 4000 Part Topology LEDs (max) Dimming Control MAX1554 Inductor based 10 Analog, PWM 20 MAX1579 Inductor based 8 Analog, PWM MAX1582 Inductor based 7 MAX1698 Inductor based MAX8596X 22 I2C ILED (mA, VIN (V, min) max) Features Internal power switch(es), shutdown, soft-start Package 49-WLP www.maximintegrated.com Mobile Power Product Guide Converters for WLED Flash VIN (V, max) Oper. Freq. (kHz) 2.7 5.5 1000 Camera flash, internal power switch(es), open-LED protection, shutdown, soft-start 8-TDFN-EP 300 2.6 5.5 1000 Camera flash, internal power switch(es), open-LED protection, shutdown, soft-start 10-TDFN-EP 100 2.7 5.5 1000 Camera flash, internal power switch(es), LED temperature derating, open LED protection, shutdown, soft-start 24-TQFN 14-TDFN-EP Part Topology LEDs (max) Dimming Control MAX1577_ Charge pump 40 Digital 1200 MAX1583 Inductor based 5 Analog, digital MAX1707 Charge pump 11 Digital, I2C serial MAX8607 Inductor based, linear current regulator MAX8645_ MAX8834_ Charge pump Inductor based ILED VIN (mA, max) (V, min) Features Package 1 Digital 1500 2.7 5.5 1000 Camera flash, internal power switch(es), LED temperature derating, open-LED protection, shutdown, soft-start 8 Analog, digital, PWM, serial pulse 200 2.7 5.5 1000 Camera flash, internal power switch(es), LED temperature derating, shutdown, soft-start 3 Digital, I2C serial 5.5 Two flash/movie LED current regulators, GSM blanking, 4000 MAXFLASH protection to prevent system lockups 1500 2.5 28-TQFN 20-WLP LDOs for Baseband and RF Chipsets VIN VIN (V, min) (V, max) VOUT (V) VDROPOUT Output at Rated Rated ICC Voltage ILOAD (µA, max) I LOAD Noise (V, typ) (µVRMS , typ) Part Description MAX1589A Low-input-voltage, 500mA LDO regulator with reset in SOT and TDFN 1.62 3.6 0.75, 1, 1.3, 1.5, 1.8, 2.5, 3 0.175 500 140 86 66-TDFN-EP/ TSOT MAX1818 500mA, low-dropout linear regulator with output current limiting and thermal protection in SOT23 2.5 5.5 1.5, 1.8, 2, 2.5, 3.3, 5, or adj 5.5 500 250 115 6-SOT23 MAX8510 Ultra low-noise, high-PSRR, lowdropout, 120mA linear regulator in SC70 2 6 1.6, 1.8, 2.5, 2.7, 2.8, 2.85, 3, 3.3, 4.5 0.12 120 90 11 MAX8840 Ultra-low-noise, high-PSRR, low-dropout, 150mA linear regulator in μDFN 2 6 1.5, 1.6, 1.8, 1.9, 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, 3, 3.1, 3.3, 4.5 0.17 150 90 11 6-μDFN/ UTLGA MAX8868 Low-noise, low-dropout, 150mA linear regulator in SOT23 with auto-discharge 2.5 5.5 2.5, 2.8, 2.84, 3, 3.15, 3.3, 3.6, 5 0.16 150 180 20 5-SOT/ TSOT MAX8902_ Low-noise 500mA LDO regulator in 2mm x 2mm TDFN 1.7 5.5 1.5, 1.8, 2, 2.5, 3, 3.1, 3.3, or adj 0.05 500 120 16 8-TDFN-EP Package 5-SC70, 8-TDFN-EP 23 Mobile Power Product Guide The Bluetooth word mark is a registered trademark owned by Bluetooth SIG, Inc. and any use of such marks by Maxim is under license. HDMI is a registered trademark of HDMI Licensing LLC. ModelGauge, Smart Power Selector, True Shutdown, and UCSP are trademarks and 1-Wire, DirectDrive, TINI, and μMAX are registered trademarks of Maxim Integrated Products, Inc. SD is a trademark of the SD Card Association. Contact Maxim Direct at 1.800.629.4642 or for more information, visit www.maximintegrated.com. © 2012 Maxim Integrated. All rights reserved. The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. in the United States and other jurisdictions throughout the world. All other company names may be trade names or trademarks of their respective owners. Rev. 0; November 2012 www.maximintegrated.com